Gas range



Sept. 27, 1932. H. E. ToELLE GAS RANGE Filed Jan. 2. 1930 2 Sheets-Sheet1 o o o o o o ov/ a o @www Sept. 27, 1932. E TOELLE 1,879,776

GAS RANGE Filed Jan. 2, 1950 2 Sheets-Sheet 2 Patented sept. 27,"1932UNITED STATES PATENT oFFlcE HERBERT E. TOELLE, 0F HILWAKEE, WISCONSIN,ASSIGNOR T0 MILWAUKEE GAS SPECIALTY CO., 0F MILWAUKEE, WISCONSIN, A.CORPORATION OF WISCONSIN Gas nANGE Y Application led January 2, 1930.Serial No. 418,012.

This invention relates to certain new and useful improvements in gasranges and refers more particularly to a pilot system whereby theburners are automatically lit by merely connecting them with the sourceof fuel, supply.

Various methods have been heretofore proposed for automatically lightingthe burners of a gas range but' the majority of these systems involvedcomplicated mechanism and considerable expense and, therefore, were notwell suited 'for the purpose.

With this and other objections to the existing pilot systems in mind,this invention has as one of its objects the provision of simpliiiedmeans for conducting a portion of the fuel issuing from a burner, as itis initially connected with its source of fuel supply, with a pilotlight to ignite the same and thereby cause the burner to beautomatically lit.

Another object of this invention resides in the provision of -means forautomatically communicating a portion of the fuel issuing from aburner-with .a pilot light to cause the burner to be automatically litupon its connection with a source of fuel supply and which means iscarried by the usual grill mounted above the burner.

Another object of this invention resides in the provision of a novelgrill structure provided With means carried by its several componentsections and which together form a pilot light chamber.

A more specific object -of this invention re. sides in the provision ofa grill structure adapted to be mounted above a plurality of Aburnersandl having a pilot chamber formed therein from which tubular membersextend to communicate fuel issuing from the burners with the pilot lightchamber, said means of communication being carried by. the grillsections to be readily removable therewith.

' And a further object of this invention resides inthe provision ofmeans for adjusting the communicating means so as to insure their properalignment with Vthe burners.

With the above and other objects in view which will apear as thedescription proceeds, my invention `resides in the novel construction,combination and arrangement of parts substantially as hereinafterdescribed and more particularly delined by the appended claims, it beingunderstood that such changes in the precise embodiment of thehereindisclosed invention may be made as come within the scope of theclaims.

In the accompanying drawings, I have illustrated two complete examplesof the physical embodiment of my invention constructed according to thebest modes I have so far devised for the practical application of theprinciples thereof, and in which:

Figure 1 is a top plan view of the burner Figure is a fragmentary bottomview taken on the plane of the line 6--6 of Figure 5 and Figure 7 is afragmentary detail view illustrating the manner of adjusting the outerend of the communicating tubes.v

Referring now more particularly to the accompanying drawings in whichlike numerals designate like parts throughout the several views, thenumeral 5 represents a. gas range of conventional construction having anoven compartment 6 and a burner compartment 7. The burner compartment,as is customary, is provided with a plurality of burners 8 adapted to becommunicated with a stringer pipe 9 'by opening valves 10. An ovenburner 8 is also communicated with the stringer pipe through a valve 10.

I-Ieretofore, it has been customary to provide a pilot light usuallylocated medially with respect to the various burners and provided with apush button valve adjacent the Stringer pipe which, upon beingdepressed, increased the supply of fuel to its tip and directing anumber of radially extending ames outwardly over the burners so that anydesired burner could be lit upon opening its particular valve. Thismethod, however, required the use of two hands, and the presentinvention contemplates the provision lof a novel means whereby anyburner may be automatically lit by merely opening its supply valve.

In the embodiment illustrated in Figures 1, 2 and 3, this means formsan'integral part of the grill structure 11 which is mounted above theburners to support the articles to be heated. The grill is of specialdesign and consists of two sections l2 and 13, which tolgether cover theentire burner section and form the top thereof.

The abutting marginal edges of the sections 12 and 13 have their lowerportions provided with semi-cup shaped recesses which are aligned whenthe sections are in place and form a pilot light chamber 14. A pilot tip15 extends upwardly into the chamber 14 and is connected with theStringer pipe by a tube 16, in which a needle valve 17 is interposed topermit adjustment of the volume of gas flowing to the pilot tip. The gasconducted to the pilot tip burns in a flame and is protected from beingblown out by the side walls of the chamber 14.

As clearly illustrated in Figure 1, the grill sections 12 and 13 areprovided with arms radial to the several burners and the arms whichextend in a radial line from the burners to the pilot light chamber 14are tubular to provide channels 18 whose outer lower portions are fopen,as at 19, and are disposed over the outermost openings 20 of theadjacent burners to communicate the same with the pilot chamber 14. Inthis manner a portion of the gas issuing from the burners as they areinitially connected with the source of supply, passes through thechannels 18 into the pilot chamber 14 to be ignited thereby and conducta iame back to the burner so that the remaining gas issuing therefrom isautomatically lit.

The grill section 12 also has its central rib 21 provided with a tubularopening 22 which extends from the pilot chamber to the marginal edge ofthe grill adjacent the oven wall 23.y From this point a pipe 24 threadedin the outer end of the passage 22 extends inwardly into the oven tohave a special elbow 25 fixed to its outer end and disposed over aportion of the openings 26 in one arm of the oven burner 8 so that theoven burner may be lit in the same manner as the other burners.

In that form of my invention illustrated in Figures 4, 5, 6 and 7, thegrill is composed of identical sections 27 and the communicatingchannels or passages extending from the pilot chamber 14 to the variousburners are provided by a plurality of pipes 28 threaded in openings inthe side walls of the chamber 14 to extend radially therefrom toward thevarious burners.

The outer end portion of the communieating pipes 28 are provided withglobular enlargements 29 over which the correspondingly shaped inner endportions 30 of exten-l sions 31 are secured so that the extensions 31are substantially universally adjustable with respect to the fixed pipes28. The outer ends of the extensions 31 have elbows 32 secured theretowhich are similar to the elbow 25 illustrated in Figure 3, and haveelongated openings 33 at their bottom portions which overlie theadjacent outlet ports 20 of the burners as in the modificationillustrated in Figures 1 to 3, inclusive.

By adjustably connecting the extensions 31 with the pipes 28, the inletopenings 33 may be readily adjusted to be disposed directly over theports 20 of the burners and in this manner variations and inaccuraciesin the castings are very easily accommodated. Both the pipes 28 and theextensions 3l are provided with a plurality of apertures 34 along theirbottoms which provide air bleeds and insure the maintenance of the flameas it travels from the pilot chamber 14 to the burners. l

From the foregoing description taken in connection with the accompanyingdrawings, it will be readily apparent to those skilled in the art towhich an invention of the character described appertains, that I providea novel and extremely simple manner of automatically lighting the burnerof a gas range which has no-moving parts whatsoever and cannot becomeout of order, and one in which variations and inaccuracies of productionmay be readily accommodated.

What I claim as my invention is:

1. In a device of the character described, a burner, means forconnecting the burner with a source of fuel supply, a grill over theburner for supporting articles to be heated, said grill having a chamberformed therein and spaced from the burner, a pilot light burning inaiiame within the chamber, and means for communicating fuel issuing fromthe burner upon its initial connection with the source of supply withinthe chamber to cause the burner to be automatically lit.

2. In a device of the character described, a burner, means forconnecting the burner with a source of fuel supply, a grill mountedabove the burner to support articles to be heated, said grill having achamber formed in its under side, a pilot light extending into thechamber and burning in a flame therein, and means connected with theWalls of the chamber and having a portion overlying the burn-er to forma tubular communicating passage from the burner to the chamber wherebyfuel issuing from the burner upon connection with the source of fuelsupply is conducted to the chamber to be ignited by the flame therein.

3. In a device of the character described, a plurality of burners, meansfor connecting the burners with a source of fuel supply, a grillstructure formed of cooperating sections mounted above the burners tosupport articles to be heated, said grill sectionshaving walls projectedfrom their under sides adjacent their meeting edges which cooperate toform a chamber open only at its bottom, a pilot light within thechamber, and tubular members extending radially from the chamber towardthe burners and having their open outer ends disposed over portions ofthe burners whereby fuel issuing from the burners is conducted to thechamber and ignited by the pilot light therein.

4. ln a device of the character described, a burner, means forconnecting the burner with a source of fuel supply, a grill over theburner for supporting articles to beheated and comprising complementarysections, said grill light within said chamber, a tubular memberextending from the chamber towards the burner, a tubular extensionsubstantially universally adjustably connected with the tubular member,said tubular extension having an opening adapted to be positioned abovea ortion of the burner whereby fuel issuing rom the burner is conductedto the chamber to be.

ignited by the pilot light therein.

In testimony whereof I have vhereunto affixed my signature.

' HERBERT E. TOELLE.

having a substantially inverted cupshaped chamber at its under sideformed by complementary walls depending downwardly from and integralwith the grill sections, a pilot light burning in a flame within thechamber, and tubular means carried by the grill' for communicating fuelissuing from the burner upon its initial connection with the source ofsupply with the chamber to cause the burner to be automatically lit.

5. In a device of the character described, a burner, means forconnecting the burner with a source of fuel supply, a grill over theburner for supporting articles to be heated and comprising complementarysections, said grill having a substantially inverted cup-shaped chamberat its under side formed by complementary walls depending downwardlyfrom and integral with the grill sections, a pilot light burning in aflame Within the chamber, and tubular means carried by the grill forcommunicating fuel'issuing from the burner upon its initial connectionwith the source of supply with the chamber to cause the burner to beautomatically lit, said tubular means having air openings at its underside.

6. ln a device of the character described, a burner, means forconnecting the burner with a source of fuel supply, a grill mounted 0nthe burner to support articles to be heated and having a chamber formedon its under side, said chamber being open at its bottom, a pilotCERTIFICATE' 0F CORRECTION.

Patent No. 1,879,776.

HERBERT E. TOELLE.

it is hereby v4certified that error appears in the printed specificationof the above numbered patent requiring correction as iollows: Page 2,line 127,` claim i, ior the word "within" read with; and that the saidLetters Patent shouid be read with Vthis eorrection therein'thatthe samemay coliform to the vreeord of the' case in the Patent (fice.

Signed and sealed this 29th day of November, A. i). i932.

M. 3. Moore,

September 27, i932.

(Seal) Acting Commissioner of Patents.

